Rare first edition of the French translation prepared by Thomas-François Dalibard at the request of the Comte de Buffon (cf Wheeler Gift 367d. Waller 11339. DSB V, pp. 129-139).
Full mottled calf, spine with five raised bands ruled in gilt and decorated with double gilt compartments with floral tools, red morocco lettering-piece, gilt rolls on the caps (partly rubbed), restorations to head and tail of spine as well as to the corners of the boards, marbled endpapers and pastedowns, gilt fillets on the edges, marbled edges, contemporary binding.
Some foxing, a dampstain to the upper right corner of the first endpaper.
The English first edition was published in London in 1751 under the title "Experiments and observations on electricity made at Philadelphia in America" (cf. Norman 830 for that edition).